Hydrocarbon-motor



H. D. CHURCH HYDROCARBON MOTOR.

APPLICATION FILED AUG.B. 19H.

1 39 8, 361 0 Patented N ova 29', 1921.

stares HAROLD D. CHURCH, 013 DETROIT, MICHIGAN, ASSIGNOR T0 PACKARDMOTOR CAR COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

HYDROCARBONMOTOR.

Specification of Letters Patent. v Patgntigfl Fig 29 1921,

Application filed August 8, 1917. SeriatNo. 185,218.

T 0 all whom it may concern:

Be it known that I, HAROLD D. CHL RCH, a citizen of the United States,and res dent of Detroit, \Vayne county, State of Michigan, have inventedcertain new and useful Improvements in Hydrocarbon-Motors, of which thefollowing is a specification.

This invention relates to motor vehicles and more particularly toapparatus for controlling the circulation of the acket water of thehydrocarbon motor. It has been proposed to provide motors of this typewith a thermostatic valve to control the flow of hot water both from themotor to the radiator and also through aby-pass around the radiator.This invention relates to aparticular arrangement of the valve and itsconnections whereby the water is by-passed through a path of minimumlength so that 1t heats quickly. The various features of the inventionwill be apparent from the description taken in conection with thedrawings. in which i The single figure is a side elevation of a portionof a motor vehicle power plant, the thermostatic valve and the apparatusimmediately connected thereto being shown in section.

As clearly shown in the drawing the water jacketed hydrocarbon motor 10of any desired type has its jacket connected to the radiator 11 by meansofthe discharge conduit 12 which includes the detachable section 27. Thebottom of the radiator is detachably connected with the circulating pump13 by means of the cool water conduit 14. A by-pass 15 extends from thetop of the water jacket to the intake of the circulating pump. In motorvehicle power plants as usually designed the hot water from the enginejacket is conducted to the top of the radiator and taken out at thebottom thereof and fed to the intake of the circulating pump which inturn discharges the water to a low part of the engine jacket. \Vhenstarting the motor, especially in cool weather, it takes considerabletime to warm up the engine so that it will operate efliciently. Inaddition to the cooling effect of the atmosphere the jacket water isalso reduced in temperature because of itspassage through the radiator.In other words, the atmosphere and radiator tend to reduce thetemperature of the jacket water while the en gine is attempting toincrease it. In order to make it possible to warm up the motor morerapidly under these conditions the bypass 15 is provided and controlledtogether with the conduit 12 by means of a thermostatic valve 16.

One of the important features of the invention consists in locating thisthermostatic valve at the top of the motor. As shown the The conduit 12is connected to this end ofthe housing and the discharge of fluid intothe same is regulated by the valve 22. This valve 22 is carried by a.slidable spindle 23 whichat its opposite end is connected to a.thermostat unit 21 of any desired construction. As shown the thermostatconsists of a bellows construction filled with a suitable liquid,whereby the bellows is extended and contracted by changes intemperature. Intermediate the thermostat and the valve 22 is a valve 25which is adapted to be moved to seat against the substantiallysemi-spherical part 26 arranged on the interior of the housing andopening into the by-pass 1 5. The distance between the valve seats onthe members 21 and 26 is less than the distance between the valves 22and 25 whereby when one valve is closed the other is open or if they arein an intermediate positionthen both valves are partially open. In thismanner the discharge of water from the engine jackets into the hot waterpipe 12 or by-pass 15 is controlled according to the temperature of thewater. Vhen the temperature is low the thermostat is contracted andconsequently' the valve 22 is closed so that the water is dischargedfrom the top of the jacket down through the by-pass 15 to the pump.rises and the thermostat expands, the valve 22 is gradually opened andthe valve 25 gradually closed. When the temperature of the water is atthe desired pointthen the by-pass is entirely closed and the circulationof the jacket water is through the radiator in the usual manner.

With the thermostatic valve and its connections arranged as described,that is at the top of the water jacket or engine, it is apparent thatthe distance through which As the temperature of the water I -heat-in,its circulation whereby the motor will warm up very quickly. Furthermore' this combination and arrangement of the parts permits theremoval of the radiator Without in any way disturbing the thermostat orthe valves.

Although the embodiment of the inven tion has been describedspecifically it is apparent that many of the details may be variedwithout departing from the spirit of the invention.

Having thus described my invention, wha I claim and desire to secure byLetters Patent is 1. A hydrocarbon motor having an aperture in its topopening, from the water picket, a housing secured over said aperturewith'its interior in communication with said water jacket through saidaperture and hava passage leading to the return from the radiator, and athermostatic valve within;

said housing controlling said passages.

' .2. A hydrocarbon motor having acylinder head, a housing secureddirectly-to said head,

the interior of said housing being in communication with the Waterjacket of the head, two outlets from saidhousing, one be ing incommunication with the upper part ing a discharge passage to theradiator and i of the radiator and the other with the return from thebottom of the radiator, and; a thermostatic valve controlling the flowof water through .said outlets.

-3. A hydro'carbon motor having a housing integral with the top wallthereof forming a chamber opening directly from the water jacket, .awater circulating pump, said housing having a discharge passage .to theradiator and a discharge passage to the water pump, andathermostatic'valve within said housing controlling said passages.

In testimony whereof I iljl ature- I a g HAROLD D. C U CH.

